AAAI Conferences 

Uncertain Case-Based Reasoning Hsinyen Wei and Costas Tsatsoulis Center for Excellence in Computer Aided System Engineering Department of Electrical and Computer Engineering The University of Kansas Lawrence, KS 66045 Uncertainty Case-Based Reasoning (CBR) can occur due to three main reasons. First, information may be simply missing. For example, the problem domain may be so complex that it can only be represented incompletely. Even in simpler domains it is not always appropriate to describe a complex situation in every detail, but to tend to use the functionality and the ease of acquisition of the information represented in the case as criterion to decide the representation of a case. Second, for different problems, different features of the world and the problem description will play different roles in achieving a solution.